1. Meter Recharge

1) Get a 20-digits token after purchasing water.2) Hold any number key on CIU for at least 2 seconds to wake it up,Please do not release it until the LCD shows “LaisonTech System Initial...”3) Input the 20-digits token successively on CIU; In the meantime, LCD will display the numbers being input and on top right corner, it indicates current number of digits.

2. Meter‘s Parameter Setting

2.1 Alarm ValueInsufficient Water Warning Function is optional in RF STS Water Meter.By inputting corresponding token, alarm value can be set.When remaining water in meter reaches this value, buzzer will beep and LCD show UN01 to remind customers to recharge meter in time; Valve can be opened again by inputting inquiry token “12 + Enter Key” or 20-digits Clear Event Token provided by Authority Operator,2.2 Overdraft ValueOverdraft function is optional in RF STS Water Meter.By inputting corresponding token, Overdraft value can be set.When remaining water in meter becomes 0, customers could open valve to enter into overdraft function by inputting inquiry token “12 + Enter Key” or 20-digits Clear Event Token provided by Authority Operator2.3 Clear Event StateIn order to prevent external tamper to meter, Meter’s valve will be closed automatically when following events happens:1)Meter’s cover open illegally2)Magnetic Interference3)Insufficient battery voltage4)Meter RestartCustomers could open valve again if remaining water in meter > 0 by inputting inquiry token “12 + Enter Key” or 20-digits Clear Event Token provided by Authority Operator;2.4 Meter ResetAll the customer information in meter including Purchased Volume, Consumed Volume, Meter Event Records etc. will be cleared if 20 digits Meter Reset Token is input; By which operation, it will make meter back to Factory Mode.Also, it will reset the Encryption key of meter, which means the tokens produced before are no longer valid. 2.5 Parameter InquiryCustomers could input a 2 digits inquiry token to check detail information in meter.The inquiry operation is similar to recharge which just needs to input 2-digits rather than 20-digits token.